Biaxial stress high temperature creep deformation test apparatus

A high-temperature creep and test device technology, which is applied in the direction of applying stable tension/pressure to test the strength of materials, can solve problems such as the inability to meet the requirements of material bidirectional stress testing, and achieve the effect of automatic temperature control

Inactive Publication Date: 2015-07-15
ELECTRIC POWER RES INST OF GUANGDONG POWER GRID +1
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  • Abstract
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  • Application Information

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Problems solved by technology

Existing high-temperature creep test equipment cannot meet the test requirements for bidirectional stress of materials

Method used

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  • Biaxial stress high temperature creep deformation test apparatus
  • Biaxial stress high temperature creep deformation test apparatus

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Embodiment Construction

[0018] The present invention will be further described with embodiment below in conjunction with accompanying drawing.

[0019] Such as figure 1 , 2 As shown, a two-way stress high-temperature creep test device includes a sample 10 and a high-temperature furnace 8, and is characterized in that: vertical narrow slots are symmetrically opened on the two side walls of the high-temperature furnace, and the sample is Cross-shaped, the upper end of the vertical bar is fixed on the top in the high-temperature furnace, and the lower end is hung with a weight 3, and the left and right ends of the horizontal bar are respectively connected to one end of a steel rope 4, and the other end of the steel rope passes through the long hole 1. After bypassing a pulley 5, a weight is hung. The pulley is arranged on a vertical guide rod and can move vertically along the guide rod 6. The bottom of the high-temperature furnace is provided with a bottom hole, and the lower end of the sample is hung....

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Abstract

The invention provides a biaxial stress high temperature creep deformation test apparatus. The apparatus comprises a sample and a high temperature furnace, two sidewalls of the high temperature furnace are symmetrically provided with vertical narrow long holes, the sample is crossed in shape, the upper end of the vertical rod of the sample is fixed to the top in the high temperature furnace, a counterweight hangs at the lower end of the vertical rod, the left end and the right end of the across rod of the sample are respectively connected with one ends of steel ropes, the other ends of the steel ropes traverse through the long holes, are wound on pulleys and then are provided with counterweights, and the pulleys are arranged on vertical guide rods respectively, and can vertically move along the guide rods. The crossed sample is adopted, horizontal and vertical pulling forces are applied to the sample in the high temperature furnace, so biaxial stress high temperature creep deformation test requirements of a material are met to make the high temperature creep deformation test approach practical use conditions of the material; and a temperature control system is arranged to realize automatic control of the temperature.

Description

technical field [0001] The invention relates to a high-temperature creep test device, in particular to a bidirectional stress high-temperature creep test device. Background technique [0002] High-temperature creep refers to the slow plastic deformation of the sample under continuous stress in a high-temperature environment, and the stress is much smaller than the yield strength of the material, which can be either tensile or compressive. High temperature creep can effectively predict the strain trend and fracture life of materials after long-term service under high temperature and stress, which is an important mechanical performance parameter. Existing high-temperature creep samples are usually subjected to continuous action under uniaxial tensile load at high temperature, and an auxiliary measurement and recording system is added, and the test is carried out in accordance with "GB / T 2039-2012 Metal Materials Uniaxial Tensile Creep Test Method". [0003] In the prior art, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/18
Inventor 钟万里李慎兰王伟李文胜王志武宋涛田竞
Owner ELECTRIC POWER RES INST OF GUANGDONG POWER GRID
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